Image: Prypjat dose rate meter

Description: Dose rate meter, Pripjat, Ukraine The normal environmental radiation in a non-contaminated area is 0.05 to 0.1 microsievert/h depending how high up you are. The geiger counter will give alarm at 0.3 microsievert/h as an unhealthy level, so 9 is pretty high. However, you would have to spend weeks in such a high level to acquire a dangerous dose for your body. There are also a lot of «hotspots» in the exclusion zone where you measure levels from 150 up to 800 microsievert/h. We measured 190 at some points, and mostly the levels changed rapidly in only a few steps... that's why we had a guide.
Title: Prypjat dose rate meter
Credit: Flickr: Prypjat
Author: Alex Kühni
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